Finding the Fourth Proportional to 134,763.40, 202,145.10 and 128,202.40
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Solution
The fourth proportional to 134,763.40, 202,145.10 and 128,202.40 is: 192,303.60
Step by Step Solution
- Step 1: Write the proportion equation
134,763.40 : 202,145.10 = 128,202.40 : x - Step 2: Convert to fraction form
134,763.40/202,145.10 = 128,202.40/x - Step 3: Cross multiply
134,763.40x = 202,145.10 × 128,202.40 - Step 4: Simplify right side
134,763.40x = 25,915,486,968.24 - Step 5: Solve for x
x = 25,915,486,968.24/134,763.40 - Step 6: Final answer
x = 192,303.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.